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Nonlinear Control Allocation for Drilling Rigs with an Online Actuator Selection Method 认领 引用
1
作者 Mohammad Faghiri Mehdi Naderi +1 位作者 Amirhossein Nikoofard Ali Khaki Sedigh 《哈尔滨工程大学学报（英文版）》 CSCD 2025年第6期1218-1229,共12页
Dynamic positioning systems(DPS)on marine vessels exhibit actuator redundancy,with more actuators than degrees of freedom.A control allocation unit is employed to address this redundancy.Practical systems often featur... Dynamic positioning systems(DPS)on marine vessels exhibit actuator redundancy,with more actuators than degrees of freedom.A control allocation unit is employed to address this redundancy.Practical systems often feature time-varying elements in the effectiveness matrix due to factors such as changing operating conditions,nonlinearity,and disturbances.Additionally,not all thrusters require engagement at each step to counteract disturbances and maintain position.Control efforts can be generated by selecting some thrusters based on their instant effectiveness,while others can remain on standby.Therefore,introducing a control allocation method that calculates the effectiveness matrix online and selects the most efficient thrusters could be effective.This paper introduces a fault-tolerant control allocation strategy for DPS with a varying effectiveness matrix.Specifically,the investigation focuses on a case study featuring eight azimuth thrusters used on a drilling rig.At each time step,the effective matrix is calculated online,followed by the selection of the four most effective thrusters based on the actuator effectiveness index,with the four serving as backups in case of a fault.The proposed strategy has been validated through simulation results,demonstrating advantages such as robustness against changes in the effectiveness matrix and reduced energy usage by the thrusters. 展开更多
关键词 Marine vessels Drilling rigs Dynamic position systems Control allocation Actuator selection Fault-tolerant systems
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Research on Prevention of Ship Collisions with Oil Rigs 认领 引用 被引量：1
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作者 Zhang Pengfei Zhao Minghua +1 位作者 Sriram Rajagopal Fotios Retouniotis 《Journal of Shipping and Ocean Engineering》 2016年第5期279-283,共5页
The consequences of ship collisions with an oil rig, offshore installation or platform can be far more expensive in relation to safety, environment and costs of damage. The damage due to a single incident of an Oil Ri... The consequences of ship collisions with an oil rig, offshore installation or platform can be far more expensive in relation to safety, environment and costs of damage. The damage due to a single incident of an Oil Rig Collision can be catastrophic due to the number of people on board and the added risk of explosion. However, the existing rules and regulations of collisions prevention are insufficient. The purpose of this article is to critically evaluate the risk of ships collisions with offshore platforms and installations and therefore propose an international regulation for the preventions of this type of collisions. 展开更多
关键词 Collision oil rigs ships prevention.
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Rigs Made by Baoji Petroleum Machinery Manufacturing Plant Come out in Serial Form 认领 引用
3
作者 Hu Xinhe 《China Oil & Gas》 CAS 1998年第4期256-256,共1页
关键词 Rigs Made by Baoji Petroleum Machinery Manufacturing Plant Come out in Serial Form
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Development of an intelligent drilling cuttings method drill rig for addressing suction and sticking phenomena:Field experiment 认领 引用
4
作者 Lei Cui Yishan Pan +4 位作者 Jianzuo Zhang Aiwen Wang Lianpeng Dai Cancan Liu Shengliang Lu 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2026年第6期1189-1202,共14页
During the operation of the drilling cuttings method,frequent occurrences of suction and sticking phenomena lead to the loss of drilling tools and failure to achieve the designed borehole depth.resulting in inaccurate... During the operation of the drilling cuttings method,frequent occurrences of suction and sticking phenomena lead to the loss of drilling tools and failure to achieve the designed borehole depth.resulting in inaccurate risk assessment for coal seam rockbursts.To address these challenges,a mechanical analysis of cuttings transport via the spiral drill pipe was conducted.This analysis identified the primary factors contributing to suction and sticking phenomena in spiral drill pipes and proposed a targeted approach for mitigating these issues.Based on this analysis,an intelligent drilling cuttings method drill rig(IDCMDR)was developed,and field experiments were conducted.The experimental results demonstrate that when suction occurs,adjusting the rotational and drilling speeds of the IDCMDR effectively controls the phenomenon.When sticking occurs,the stuck drill pipe can be addressed by injecting high-pressure gas into the borehole bottom through the hollow structure of the spiral drill pipe or by reversing its rotation.During operation,characteristic patterns in the needle movements of the thrust and torque hydraulic gauges on the IDCMDR enable the identification of suction and sticking phenomena.The development and field validation of the IDCMDR confirm the feasibility of the theoretically proposed mitigation methods. 展开更多
关键词 Rockburst Drilling cuttings method Intelligent drilling cuttings method drill rig (IDCMDR) Spiral drill pipe Suction and sticking phenomena
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Experimental rigs for testing components of advanced industrial applications 认领 引用
5
作者 Enrico CIULLI 《Friction》 SCIE EI CAS CSCD 2019年第1期59-73,共15页
This paper presents experimental rigs of the Research Centre for the Mechanics of Turbomachinery of the Department of Civil and Industrial Engineering of the University of Pisa. Most of them were designed and construc... This paper presents experimental rigs of the Research Centre for the Mechanics of Turbomachinery of the Department of Civil and Industrial Engineering of the University of Pisa. Most of them were designed and constructed to allow investigations of real machine components and to furnish more realistic results than basic tribological test rigs. Tilting pad journal bearings, as well as gears and complete gearboxes for advanced industrial applications, can be tested using the rigs described in the paper. A novel test rig with a power rating of approximately 1 MW allows investigations of the static and dynamic characteristics of high-performance tilting pad journal bearings for turbomachinery. A twin disc machine and closed loop gear test rig are used to investigate the different kinds of wear mechanisms occurring in gears. Functional and durability tests on planetary gearboxes for new turbo-fan engines could be performed using another novel large test rig. A circulating power configuration was adopted for most of the rigs so that only the power needed to cover the friction losses has to be supplied, while the circulating power can be more than 20 times higher. All the test rigs include very complex load applications and lubrication plants, as well as dedicated control and data acquisition systems. The rigs and related plants were designed and constructed through strong and fruitful collaborations between the university and some large and small–medium companies. Despite some limitations in the publication of the results as a result of the industrial sensitivity of the data, the synergy among these different actors was stimulating and fundamental for the realization of new advanced industrial applications. 展开更多
关键词 experimental rigs tilting pad journal bearings twin disc machine gears gearboxes
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Selecting Optimal Drill Rigs by Grey Relational Analysis Method 认领 引用 被引量：1
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《Systems Science and Systems Engineering》 1993年第2期174-178,共5页
Based upon the main properties of the relational analysis in grey system theory, a new method to select optimal drill rigs is proposed in this paper. Under the unified technique economic index, with the practical data... Based upon the main properties of the relational analysis in grey system theory, a new method to select optimal drill rigs is proposed in this paper. Under the unified technique economic index, with the practical data of four kinds of drill rigs in the mining district, east of Sichuan, China, an optimal reference number series was constructed. Through calculating the relational grade between the technique economic indices of various drill rigs and the reference number series and making a relational sequence in accordance with priority, the results achieved are in conformity with that of reference by Fuzzy Set Theory, and grey situation decision making and yet this method is simple, easy and intuitive in analysis etc.. 展开更多
关键词 grey relational analysis optimal drilling drill rigs.
DESIGN METHOD OF LEG STRUCTURE OF JACK-UP RIGS 认领 引用
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作者 T.Ohta H.Yamauchi M.Toriumi Engineering Research Center,NKK Corporation,Kawasaki,Japan 《Journal of Hydrodynamics》 SCIE EI 1993年第4期57-62,共6页
The structural failures of jack-up rigs were mostly found in leg structures,due to cracks in way of connections between tubular members of leg structures.Although,stress calculations of leg structures can be made by u... The structural failures of jack-up rigs were mostly found in leg structures,due to cracks in way of connections between tubular members of leg structures.Although,stress calculations of leg structures can be made by using“finite element techniques”,it takes a lot of time to complete the calculations for the full cases of all working conditions because of many tubular members.Therefore,a simple method for the stress calculations for design purposes is strongly desired.This paper desribes a simple stress calculaiton method of leg structures and shows a satisfactory results as compared with the results obtained by a detailed calculation method. 展开更多
关键词 jack-up rigs leg structures simple design method stresses
Research on Flow Field Calibration Method and Accuracy Improvement for the Aerodynamic Performance Test Rig of Aircraft Engine Compressors 认领 引用
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作者 Cheng Lu Honghui Xiang +2 位作者 Lei Huang Kuan Liu Xianghong Shen 《Journal of Electronic Research and Application》 2026年第3期54-61,共8页
The aerodynamic performance test rig for aircraft engine compressors serves as a core ground test facility for conducting aerodynamic design verification,performance evaluation,stability analysis,and flow mechanism re... The aerodynamic performance test rig for aircraft engine compressors serves as a core ground test facility for conducting aerodynamic design verification,performance evaluation,stability analysis,and flow mechanism research on compressors.The accuracy of its flow field measurement results directly determines the reliability of key conclusions,such as compressor characteristic curves,adiabatic efficiency,stability boundaries,and interstage matching relationships.In the context of developing a new generation of compressors with high load,high efficiency,and wide stability margins,traditional methods relying on empirical debugging and local calibration struggle to meet the requirements for high-precision aerodynamic testing.This paper takes an axial-flow compressor aerodynamic performance test rig as the research object,systematically elaborates on the typical process and mainstream methods of flow field calibration,analyzes the primary sources of error affecting measurement accuracy,and proposes an integrated strategy for improving accuracy from aspects such as probe calibration,flow rate calibration,flow field uniformity correction,installation and environmental compensation,and traceability of measurements.Furthermore,it provides a comparative analysis of calibration effects based on engineering test data.The research results indicate that through systematic flow field calibration and multi-dimensional error correction,the uncertainty in flow rate measurement can be reduced to better than±0.3%,with significant improvements in the measurement accuracy of total pressure and flow angle.The flow field non-uniformity is controlled within 3%,providing reliable data support for ground testing of high-performance compressors. 展开更多
关键词 Aircraft engine Compressor Test rig Flow field calibration Measurement accuracy Error correction
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放免指导手术系统(RIGS)可以改进原发性结直肠癌病人的传统治疗决策 认领 引用
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作者 孙诚谊 《国际外科学杂志》 北大核心 1993年第1期56-56,共1页
原发性结直肠癌病例的传统治疗决策是根据肿瘤的范围及其扩散情况而作出的。近期应用的放免方法可以检出隐性微小病灶,帮助及时处理以提高疗放,RIGS由此可以根据所得信息及时修正癌肿的分期和治疗方案。在1990年6月至1991年6月期间,作者... 原发性结直肠癌病例的传统治疗决策是根据肿瘤的范围及其扩散情况而作出的。近期应用的放免方法可以检出隐性微小病灶,帮助及时处理以提高疗放,RIGS由此可以根据所得信息及时修正癌肿的分期和治疗方案。在1990年6月至1991年6月期间,作者对Ohio州大学医院37例原发性结直肠癌均用RIGS指导治疗。先注射用1～2mCi碘125 展开更多
关键词 结直肠癌 RIGS 治疗决策 手术系统 微小病灶 大学医院 扩散情况 胃肝韧带 肝转移 区域淋巴结
Detection of rock joints and opening degrees based on drilling parameters and moving average filter 认领 引用
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作者 Wenhao Yi Mingnian Wang +2 位作者 Qinyong Xia Honglin Shen Siguang Zhao 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2025年第10期6130-6144,共15页
2The joint opening degree is a critical index for assessing the stability of jointed rock masses,which directly impacts the rock mass quality.It is also a key factor influencing the design of tunnel support structures... 2The joint opening degree is a critical index for assessing the stability of jointed rock masses,which directly impacts the rock mass quality.It is also a key factor influencing the design of tunnel support structures.Hammer and rotary drilling rigs,commonly employed as rock-breaking equipment in tunneling,inevitably encounter joints with varying opening degrees during construction.This research aims to enhance the sampling frequency of hammer and rotary drilling rigs and optimize the joint detection algorithm,thereby equipping these rigs with the capability to detect joint opening degrees.This paper develops high-frequency acquisition equipment for drilling parameters to realize millimeter-level data acquisition.Drilling experiments on jointed rock mass are conducted under conditions corresponding to joint opening degrees of 1 mm,3 mm,and 5 mm.The relationships among joint opening degree,drilling parameters,and width of rock failure region are investigated.A joint opening degree detection algorithm is proposed based on the drilling parameters and moving average filter.The results indicate that the curves of penetration velocity and rotary pressure along the drilling direction exhibit a three-segment distribution,i.e."stable segment-adjustment segment-stable segment".The variation curves of drilling parameters display a“velocity mountain”and a“pressure valley”in the failure region.The relative errors in joint opening degree estimation based on penetration velocity and rotary pressure range from 3.4%to 32%and from 6%to 35%,with average relative errors of 12.95%and 16.24%,respectively. 展开更多
关键词 Joint opening degree Drilling parameters Hammer and rotary drilling rigs Drilling experiment Data filtering
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手持式肿瘤探测仪的研制及其应用 认领 引用 被引量：1
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作者 李小平 钱和年 +3 位作者 冯捷 丁洪林 张秀风 张万昌 《中国医疗器械杂志》 1997年第5期266-268,共3页
介绍手持式肿瘤γ探测仪（GDP），它遵循减少放射源至探头间的距离，增加空间分辨率，提高探测灵敏度和特异性的原理，利用GDP进行了体外探测和荷瘤动物体内探测应用，初步实验结果表明：该肿瘤探测仪用于肿瘤放射免疫导向手术是可行的。
关键词 肿瘤探测仪 手持式 研制 临床应用 RIGS
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放射免疫导向手术的研究进展 认领 引用 被引量：1
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作者 吕大鹏 《中国肿瘤临床与康复》 1998年第2期79-79,78,共1页
关键词 放射免疫导向 外科手术 RIGS RII 放射性核素
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Review of cylinder block/valve plate interface in axial piston pumps: Theoretical models,experimental investigations, and optimal design 认领 引用 被引量：26
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作者 Jiang'ao ZHAO Yongling FU +3 位作者 Jiming MA Jian FU Qun CHAO Yan WANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2021年第1期111-134,共24页
Axial piston pumps have been widely used in aircraft hydraulic systems to supply the system with pressurized fluid. The continuous improvement of the aircraft performance has put forward the demand on aviation piston ... Axial piston pumps have been widely used in aircraft hydraulic systems to supply the system with pressurized fluid. The continuous improvement of the aircraft performance has put forward the demand on aviation piston pumps for high power density, safety, and reliability. The lubricating interfaces in axial piston machines are the key design issue that greatly determines the pump performance and service life. The cylinder block/valve plate interface is one of these critical lubricating interfaces and has received considerable attention from many researchers in the last half century. This study aims to review the state-of-the-art literature on the cylinder block/valve plate interface comprehensively and systematically. First, we introduce various theoretical models developed to investigate the lubrication behaviors of the interface and compare them in terms of their assumptions and limitations. Second, the experimental studies on the cylinder block/valve plate interface are presented comprehensively, where the involved test rigs are divided into three types according to their fidelity levels and measurement functionality. Third, we summarize some typical approaches of structure optimization, surface shaping, and surface strengthening, which help improve the load-carrying and anti-wear capacities of the interface under severe operating conditions. Finally, the challenges and future trends of the cylinder block/valve plate interface research are discussed briefly. 展开更多
关键词 Axial piston pump Cylinder block/valve plate interface Theoretical model Test rig Optimization methods
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Experimental investigation on dynamic response of flat blades with underplatform dampers 认领 引用 被引量：10
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作者 Dayi ZHANG Bin GAO +2 位作者 Jie HONG Jianwei FU Xiangyun GE 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2019年第12期2667-2678,共12页
One test rig with three blades and two Under-Platform Dampers(UPDs) is established to better understand the dynamical behavior of blades with UPDs. A pre-loaded spring is used to simulate the centrifugal load acting o... One test rig with three blades and two Under-Platform Dampers(UPDs) is established to better understand the dynamical behavior of blades with UPDs. A pre-loaded spring is used to simulate the centrifugal load acting on the damper, thereby achieving continuous adjustment of the pressing load. UPDs with different forms, sizes and materials are carefully designed as experimental control groups. Noncontact measurement via a laser Doppler velocimeter is employed and contact excitation which is performed by an electromagnetic exciter is adopted to directly obtain the magnitude of the excitation load by a force sensor mounted on the excitation rod. Particular attention is paid to the influence of the contact status of the contact surfaces, e.g. the pressure-sensitive paper is used to measure the effective contact area of the UPDs. The experimental variables are selected as the centrifugal force, the amplitude of the excitation force, the damper mass, the effective contact area, and the damper material. The Frequency Response Function(FRF) of the blade under different experimental parameters is obtained by slow frequency sweep under sinusoidal excitation to study the influence of each parameter on the dynamic characteristics of the blade and the mechanism analysis is carried out combined with the experimental results. 展开更多
关键词 Effective contact area Forced response Friction Test rig Turbo machinery Underplatform dampers
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Low-cycle fatigue behavior of a directionally solidified Ni-based superalloy subjected to gas hot corrosion pre-exposure 认领 引用 被引量：8
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作者 Hong-Yu Qi Ji-Shen Yang +1 位作者 Xiao-Guang Yang Shao-Lin Li 《Rare Metals》 SCIE EI CAS CSCD 2019年第3期227-232,共6页
The influence of gas high-temperature hot corrosion(HTHC) pre-exposure on low-cycle fatigue(LCF)behavior was characterized for the directionally solidified(DS) Ni-based superalloy DZ125. Fatigue tests were carried out... The influence of gas high-temperature hot corrosion(HTHC) pre-exposure on low-cycle fatigue(LCF)behavior was characterized for the directionally solidified(DS) Ni-based superalloy DZ125. Fatigue tests were carried out at 850 ℃ in the pre-exposed and unexposed specimens for 2, 15 and 25 h. Experimental results show that the porous corrosion scale and γ′-depleted layer formed in gas hot corrosion condition alter the crack initiation mechanisms of the superalloy. Fatigue cracks of the pre-exposed specimens originate from multiple surface locations where spalling of the corrosion products occur,while nucleation of unexposed specimen begins in the defects close to the surface. There is a significant reduction in LCF behavior for pre-exposed specimens in comparison with unexposed specimens. 展开更多
关键词 Low-cycle fatigue Hot corrosion Preexposure Burner rig Ni-based superalloy
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航空飞行试验遥测标准概况 认领 引用 被引量：25
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作者 袁炳南 霍朝晖 白效贤 《测控技术》 北大核心 2010年第11期10-14,共5页
以遥测在航空飞行试验领域中的应用为背景,介绍了IRIG 106遥测标准2009年最新版各章节的内容要点和近几年来的发展变化,简述了最新发布的iNET遥测网络标准(航空推荐版V0.5)的进展、组成和要点,分析、对比了两个标准的应用背景、技术特... 以遥测在航空飞行试验领域中的应用为背景,介绍了IRIG 106遥测标准2009年最新版各章节的内容要点和近几年来的发展变化,简述了最新发布的iNET遥测网络标准(航空推荐版V0.5)的进展、组成和要点,分析、对比了两个标准的应用背景、技术特点和面临的问题,展望了遥测标准的发展应用前景。 展开更多
关键词 遥测标准 RIG 106 iNET 飞行试验
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Frequency-domain auto-adapting full waveform inversion with blended source and frequency-group encoding 认领 引用 被引量：8
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作者 韩淼 韩立国 +1 位作者 刘春成 陈宝书 《Applied Geophysics》 SCIE CSCD 2013年第1期41-52,118,共12页
As a high quality seismic imaging method, full waveform inversion （FWI） can accurately reconstruct the physical parameter model for the subsurface medium. However, application of the FWI in seismic data processing i... As a high quality seismic imaging method, full waveform inversion （FWI） can accurately reconstruct the physical parameter model for the subsurface medium. However, application of the FWI in seismic data processing is computationally expensive, especially for the three-dimension complex medium inversion. Introducing blended source technology into the frequency-domain FWI can greatly reduce the computational burden and improve the efficiency of the inversion. However, this method has two issues： first, crosstalk noise is caused by interference between the sources involved in the encoding, resulting in an inversion result with some artifacts; second, it is more sensitive to ambient noise compared to conventional FWI, therefore noisy data results in a poor inversion. This paper introduces a frequency-group encoding method to suppress crosstalk noise, and presents a frequency- domain auto-adapting FWI based on source-encoding technology. The conventional FWI method and source-encoding based FWI method are combined using an auto-adapting mechanism. This improvement can both guarantee the quality of the inversion result and maximize the inversion efficiency. 展开更多
关键词 Full waveform inversion Frequency-domain Blended source Frequency-group encod!ng Au!o adapt!rig I
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病毒诱导I型干扰素产生的机制 认领 引用 被引量：10
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作者 李军 曾芸 《生命的化学》 CAS 北大核心 2006年第5期395-398,共4页
病毒的病原体相关分子模式被细胞的相关受体识别后,分别经过Toll样受体途径和核酸结合蛋白途径进行信号转导,启动β-干扰素的转录和合成。从感染细胞分泌的β-干扰素与细胞膜上I型干扰素共有的受体结合后,经Jak/STAT信号途径刺激细胞产... 病毒的病原体相关分子模式被细胞的相关受体识别后,分别经过Toll样受体途径和核酸结合蛋白途径进行信号转导,启动β-干扰素的转录和合成。从感染细胞分泌的β-干扰素与细胞膜上I型干扰素共有的受体结合后,经Jak/STAT信号途径刺激细胞产生一系列具有抗病毒效应的的干扰素刺激因子。干扰素调节因子7作为一种干扰素刺激因子在启动随后的α-干扰素转录中起着重要作用。α、β-干扰素的产生进一步放大了产生干扰素刺激基因的信号,形成一个正反馈回路,加强了免疫应答的强度和延长免疫应答的时间。 展开更多
关键词 病毒 Toll样受体 RIG—Ⅰ Mda-5 Ⅰ型干扰素
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Real-time multibody modeling and simulation of a scaled bogie test rig 认领 引用 被引量：4
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作者 Sundar Shrestha Maksym Spiryagin Qing Wu 《Railway Engineering Science》 EI 2020年第2期146-159,共14页
In wheel–rail adhesion studies,most of the test rigs used are simplified designs such as a single wheel or wheelset,but the results may not be accurate.Alternatively,representing the complex system by using a full ve... In wheel–rail adhesion studies,most of the test rigs used are simplified designs such as a single wheel or wheelset,but the results may not be accurate.Alternatively,representing the complex system by using a full vehicle model provides accurate results but may incur complexity in design.To trade off accuracy over complexity,a bogie model can be the optimum selection.Furthermore,only a real-time model can replicate its physical counterpart in the time domain.Developing such a model requires broad expertise and appropriate software and hardware.A few published works are available which deal with real-time modeling.However,the influence of the control system has not been included in those works.To address these issues,a real-time scaled bogie test rig including the control system is essential.Therefore,a 1:4 scaled bogie roller rig is developed to study the adhesion between wheel and roller contact.To compare the performances obtained from the scaled bogie test rig and to expand the test applications,a numerical simulation model of that scaled bogie test rig is developed using Gensys multibody software.This model is the complete model of the test rig which delivers more precise results.To exactly represent the physical counterpart system in the time domain,a real-time scaled bogie test rig(RT-SBTR)is developed after four consecutive stages.Then,to simulate the RT-SBTR to solve the internal state equations and functions representing the physical counterpart system in rigs used are simplified designs such as a single wheel or wheelset,but the results may not be accurate.Alternatively,representing the complex system by using a full vehicle model provides accurate results but may incur complexity in design.To trade off accuracy over complexity,a bogie model can be the optimum selection.Furthermore,only a real-time model can replicate its physical counterpart in the time domain.Developing such a model requires broad expertise and appropriate software and hardware.A few published works are available which deal with real-time modeling.However,the influence of the control system has not been included in those works.To address these issues,a real-time scaled bogie test rig including the control system is essential.Therefore,a 1:4 scaled bogie roller rig is developed to study the adhesion between wheel and roller contact.To compare the performances obtained from the scaled bogie test rig and to expand the test applications,a numerical simulation model of that scaled bogie test rig is developed using Gensys multibody software.This model is the complete model of the test rig which delivers more precise results.To exactly represent the physical counterpart system in the time domain,a real-time scaled bogie test rig(RT-SBTR)is developed after four consecutive stages.Then,to simulate the RT-SBTR to solve the internal state equations and functions representing the physical counterpart system in equal or less than actual time,the real-time simulation environment is prepared in two stages.To such end,the computational time improved from 4 times slower than real time to 2 times faster than real time.Finally,the real-time scaled bogie model is also incorporated with the braking control system which slightly reduces the computational performances without affecting real-time capability. 展开更多
关键词 Bogie modeling Scaled bogie test rig Realtime simulation Wheel-rail adhesion Software in loop
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LGP2参与抗病毒天然免疫应答的研究进展 认领 引用 被引量：4
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作者 李倩 李向茸 冯若飞 《病毒学报》 CAS CSCD 北大核心 2019年第2期313-317,共5页
RIG-I样受体(RIG-I like receptors,RLRs)是天然免疫系统中一类重要模式识别受体,在细胞天然免疫应答中发挥重要的作用,LGP2是RLRs家族成员之一,对RLRs信号转导有正向和负向调控的双重作用。LGP2依据感染病毒种类的不同发挥着不同的调... RIG-I样受体(RIG-I like receptors,RLRs)是天然免疫系统中一类重要模式识别受体,在细胞天然免疫应答中发挥重要的作用,LGP2是RLRs家族成员之一,对RLRs信号转导有正向和负向调控的双重作用。LGP2依据感染病毒种类的不同发挥着不同的调控作用,但详细作用机制不明确。随着研究的深入,LGP2在天然免疫应答中的作用愈发重要。本文就近年来对LGP2参与RLRs介导的抗病毒天然免疫应答的调控及在不同病毒感染宿主中所起的作用作一综述,以期为LGP2深入研究提供参考。 展开更多
关键词 RIG‐Ⅰ样受体 LGP2 抗病毒天然免疫应答
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